With the invasion of a new round of cold wave in northern China, the construction machinery industry ushered in the annual winter maintenance test. As a "heavy tool" in construction, excavator maintenance in winter is particularly important. The following will provide some skills for excavator winter maintenance, which provides a valuable reference for the construction unit.

First of all, choosing the right oil is the primary task of excavator winter maintenance. In low temperature environment, the viscosity of diesel and oil will increase significantly, affecting the start-up and operation efficiency of the equipment. Therefore, it is recommended to use light diesel oil with a freezing point lower than the local minimum temperature of about 10 ° C and replace it with an oil with a smaller viscosity to ensure the fluidity of the oil under cold conditions.

In addition, the maintenance of the brake system and cooling system can not be ignored. The brake oil is easy to become viscous at low temperature, which affects the braking effect, so it needs to be checked and replaced regularly. At the same time, in order to prevent the cooling system from freezing, the antifreeze with a lower freezing point should be replaced, and the internal cleanliness of the water tank and the body should be ensured.

Before starting in winter, the excavator still needs to carry out adequate preparation activities. After starting the engine, it should be allowed to run at a medium and low speed for a period of time, and the oil temperature should rise to normal temperature before operation to reduce wear and improve engine performance.

Finally, the insulation measures of excavators are also the key to winter maintenance. During construction or shutdown, it is necessary to ensure the insulation of key components of the equipment to prevent damage due to cold. When the machine is stopped, the snow and ice on the equipment should also be cleaned in time to keep the equipment clean and dry.